var single = 'single';
var backtick = `back${x}tick`; // backticks are allowed due to substitution
var foo = 'bar'
var foo = 1;

class C { 'f'; 'm'() {} }
var foo = `back
tick`;
var foo = `back\\\\
tick`;
var foo = `back\\\\\\\\
tick`;
var foo = `
`;

